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Tracer gas techniques for quantifying the air change rate in churches – field investigation experiences
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering. (Indoor environment)ORCID iD: 0000-0002-0337-8004
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering. (Indoor environment)
2011 (English)In: Proc. Roomvent 2011: 12th International conference on air distribution in rooms / [ed] Hans Martin Mathisen, Trondheim, Norge: Tapir Akademisk Forlag , 2011Conference paper, Published paper (Refereed)
Abstract [en]

Two different tracer gas techniques for quantifying the air change rate were tested in three naturally ventilated churches. The techniques were the decay method (or tracer gas dilution method) and a passive tracer gas method. It appeared that the room air in the studied churches tended to be fairly well mixed when the churches are heated, presumably due to strong natural convection air currents occurring at heat sources and cooler outer building surfaces. This seems to entail that both the decay and the passive method are fairly easy to apply during times of heating. It then doesn’t seem to matter much were the tracer gas is injected or where it is sampled. During non-heating periods, however, spatial differences in tracer gas concentrations were observed, making tracer gas measurements more difficult to perform.

Place, publisher, year, edition, pages
Trondheim, Norge: Tapir Akademisk Forlag , 2011.
Keyword [en]
Tracer gas, air change rate, decay method, passive tracer gas method, churches
National Category
Other Civil Engineering
Identifiers
URN: urn:nbn:se:hig:diva-8881ISBN: 978-82-519-2812-0 (print)OAI: oai:DiVA.org:hig-8881DiVA: diva2:414105
Conference
Proc. Roomvent 2011: 12th International conference on air distribution in rooms. Paper No. 235. Trondheim. Norway.
Projects
Church project
Available from: 2011-05-02 Created: 2011-05-02 Last updated: 2015-10-16Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf